Mixing ginger with lemon juice and rubbing the combo on your forehead helps relieve sickness-instigated headaches according to Ayurvedic belief. It's all about bringing the body back to balance. If you're a "Kapha" (earth), Vamana Therapy is used to correct imbalance. For Pitta (fire) Verachena (purgation) is most effective. Those of Vata (air) makeup best respond to Basti (enema) to help regulate imbalance.